منابع مشابه
The Physiology of Self-sterility in Plants
Hermaphroditic animals and plants are known where fertilization of the eggs by the sperm or by the pollen produced by the same individual is very unusual. The extent of the phenomenon in the animal kingdom is unknown, Ciona intestinalis, an ascidian, having been the only species used in experimental work. In the angiosperms, the characteristic is widespread, and must be supposed to have origina...
متن کاملThe Physiology of Self-sterility in Plants
Hermaphroditic animals and plants are known where fertilization of the eggs by the sperm or by the pollen produced by the same individual is very unusual. The extent of the phenomenon in the animal kingdom is unknown, Ciona intestinalis, an ascidian, having been the only species used in experimental work. In the angiosperms, the characteristic is widespread, and must be supposed to have origina...
متن کاملOn the Problem of Self-sterility Alleles.
RIGHT'S initial analysis (1939) of the behaviour of a self-sterility population followed the discovery by EMERSON (1938, 1939) of a large number (at least 37, later stated by LEWIS [1948] to be 45) of self-incompatibility alleles in Oenothera organensis, a species restricted to a small mountain area in New Mexico. EMERSON found 154 individuals in this population and estimated that the total pop...
متن کاملStudies on Self-Sterility. IV. Selective Fertilization.
INTRODUCTION .................................................................. 346 Discussion of the problem ..................................................... 348 Pollen-tube frequency distributions ............................................. 349 Influence of growth of compatible pollen tubes upon incompatible pollen tubes.. .. 352 SUMMARY AND DISCUSSION ....................................
متن کاملThe Distribution of Self-Sterility Alleles in Populations.
H E phenomenon of self-sterility is known to be very common among T higher plants. The genetic mechanism in most cases studied seems to be that discovered by EAST and MANGELSDORF in Nicotiana data and N . Sanderae. A single series of alleles, S1, Sz . . . , is involved. The growth of a pollen tube is so much inhibited in a style whose cells contain the same allele that it does not reach the emb...
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ژورنال
عنوان ژورنال: Nature
سال: 1939
ISSN: 0028-0836,1476-4687
DOI: 10.1038/143245a0